WEHEREIN X IS AN ATOM OF HAOLGEN, Z IS NITROGEN, CARBON OR PHOSPHOROUS; R'' IS HYDROGEN RADICAL WITH FROM 1 TO 10 CARBON ATOMS, OR HYDROGEN, OR IS EQUAL TO X; Y IS A MEMBER OF THE GROUP CONSISTING OF
1. PROCESS FOR THE PRODUCTION OF BUTYL RUBBER THROUGH THE COPOLYMERIZATION OF ISOBUTYLENE AND ISOPRENE WHEREIN THE IMPROVEMENT COMPRISES CONDUCTING THE COPOLYMERIZATION REACTION IN THE PRESENCE OF A CATALYTIC SYSTEM CONSISTING ESSENTIALLY OF: (A) A METALORGANIC COMPOUND OF ALUMINUM HAVING THE FORMULA AIR3 OR AIR2X WHERE X IS A HALOGEN ATOM AND R IS A HYDROCARBON RADICAL WITH FROM 1 TO 10 CARBON ATOMS, OR HYDROGEN; AND (B) A COMPOUND CONTAINING A MOBILE HALOGEN GROUP OR AT LEAST ONE IN WHICH THE HALOGEN GROUP IS EASILY EXCHANGEABLE DUE TO THE PRESENCE OF AN ELECTROPHILIC GROUP REPRESENED BY THE FORMULA Y'' IS EQUAL TO Y, OR TO R''; Y OR Y'' MAY BE A BIVALENT RADICAL LINKED THROUGH A DOUBLE BON DIRECTLY TO Z; Y AND Y'' MAY BE CONNECTED TO EACH OTHER CLOSING THEMSELVES CYCLICALLY ON Z; R'''' IS AN ALKYLIC OR ARYLIC RADICAL, SIMPLE OR SUBSTITUTED; N AND H ARE 0 OR 1.
摘要:
1. PROCESS FOR THE PRODUCTION OF BUTYL RUBBER THROUGH THE COPOLYMERIZATION OF ISOLBUTYLENE AND ISOPRENE WHEREIN THE IMPROVEMENT COMPRISES CONDUCTING THE COPOLYMERIZATION IN THE PRESENCE OF A CATALYTIC SYSTEM CONSISTING ESSENTIALLY OF: (A) A METALORGANIC COMPOUND OF ALUMINUM REPRESENTED BY THE FORMULA AIR3 OR AIR2X WHEREIN X IS A HALOGEN ATOM; R IS A HYDROCARBON RADICAL WITH FROM 1 TO 10 CARBON ATOMS OR HYDROGEN; AND (B) A HALOID OF AN ORGANIC ACID OR THIOACID REPRESENTED BY THE GENERAL FORMULA
R''-C(=Y)-X''
IN WHICH X'' IS A HALOGEN ATOM; R'' IS AN ALKYLIC RESIDUE, CYCLOALKYLIC, ALKYLARYLIC, ALKYLCYCLOALKYLIC, OR IS EQUAL TO X'' OR IS REPRESENTED BY THE FORMULA
摘要:
1. PROCESS FOR THE PRODUCTION OF BUTYL RUBBER THROUGH THE COPOLYMERIZATION OF SIOLBUTYLENE AND ISOPRENE WHEREIN THE IMPROVEMENT COMPRISES CONDUCTING THE COPOLYMERIZATION REACTION IN THE PRESENCE OF A CATALYST SYSTEM CONSISTING ESSENTIALLY OF: (A) A METALORGANIC COMPOSITION OF ALUMINUM REPRESENTED BY THE FORMULA AIR3 OR AIR2X WHEREIN X IS AN ATOM OF HALOGEN, AND R IS A HYDROCARBON RADICAL HAVING FROM 1 TO 10 CARBON ATOMS, OR HYDROGEN; (B) A HALOID OF AN INORGANIC ACID REPRESENTED BY THE GENERAL FORMULA ZNMEXMYP IN WHICH ME IS AN ELEMENT BELONGING TO THE 5*, 6* OR 7* GROUP OF THE PERIODIC SYSTEM; N AND M ARE WHOLE NUMBERS; P IS A WHOLE NUMBER OR ZERO AND THE SUM 2N+M+P IS EQUAL TO THE VALENCY OF SAID ELEMENT; Z IS OXYGEN OR SULPHUR; X IS A HALOGEN ATOM; Y IS AN ORGANIC RESIDUE SELECTED FROM THE ALKYLIC, ACRYLIC, CYCLOHEXYLIC, ETHERIC, AMMIDIC, ACETYLACETONIC AND OXIMIC FUNCTIONAL GROUPS; AND WHEREIN THE MOLAR RATIO OF COMPOUND (B) TO COMPOUND (A) IS BETWEEN 0.5 AND 10-4.
摘要:
Vulcanizable, elastomeric copolymers of vinyl ethers and cyclic polyenes, which have a molecular weight above 50,000 and a vinyl ether content in excess of 80%, are prepared by reacting an alkyl vinyl ether such as vinyl isobutyl ether with a conjugated cyclic diolefin wherein both double bonds are endocyclic or with a cyclic diolefin or triolefin having a system of conjugated double bonds, at least one of which is endocyclic, in the presence of a Friedel-Crafts catalyst and a solvent of low or high polarity; the nature and state of the obtained copolymer being controllable by the respective concentrations of the reactants and the polarity of the reaction medium.
摘要:
IN WHICH R IS HYDROGEN, CYCLOALKYL, OR ARYL; R'' IS A HYDROCARBON RADICAL SELECTED FROM THOSE LISTED FOR R; Y IS AN ATOM OF OXYGEN, OR OF SULPHUR, OR NITROGEN BOUND TO TWO HYDROCARBON RADICALS; AND X IS AN ATOM OF HALOGEN; AND (II) A CO-CATAYLST SELECTED FROM THE FOLLOWING: (A) BRONSTED ACIDS; (B) ALKYL HALOIDS, HALOIDS OF ORGANIC OR INORGANIC ACIDS, OR COMPOUNDS CONTAINING ATOMS OF ACTIVATED HALOGEN; (C) LEWIS ACIDS; AND (D) COMPOUNDS REPRESENTED BY THE FORMULA X''NMEY''M IN WHICH X'' IS AN ATOM OF HALOGEN, Y'' IS OXYGEN, SULPHUR OR A FUNCTIONAL GROUP SELECTED FROM THE ALKOXY, ESTER, AMIDE, ALKYL, CYCLOALKYL, AROMATIC, ARENE, PHOSPHINE, ACETYLACETONE AND OXIME RADICALS; ME IS A METAL CHOSEN FROM TI, SN, ZN, SI, B, AL, HG, PB, W, SB, GE, V, ZR, AS, BI AND MO; AND M AND N ARE WHOLE NUMBERS WHOSE SUM IS EQUAL TO THE VALENCY OF ME EXCEPT IN THE CASE IN WHICH Y IS OXYGEN OR SULPHUR, WHEN IT BECOMES 2M+N; AND WHEREIN THE MOLAR RATIO BETWEEN COMPOUND (II) AND COMPOUND (I) IS LESS THAN 1. 1. PROCESS FOR THE PRODUCTION OF COPOLYMERS OF ISOBUTYLENE AND A CONJUGATED DIENE, WHEREIN THE COPOLYMERIZATION REACTION IS CONDUCTED IN THE PRESENCE OF A CATALYST SYSTEM CONSISTING ESSENTIALLY OF: (I) A METALORGANIC COMPOUND OF ALUMINUM REPRESENTED BY THE FORMULA